The diagram illustrated below shows a DAP fertilizer bag. Study it carefully and answer the questions that follow.

The diagram illustrated below shows a DAP fertilizer bag. Study it carefully and answer the questions that follow.

a) What do the figures labelled on the diagram stand for.

18% N, 46%P2O5, 0% K2O

b) With a reason name the class of inorganic fertilizer that DAP belong.

Incomplete compound fertilizer,
Reason; contains only two primary macro-nutrient

c) Calculate the amount of filler material in 200 kg of DAP with a fertilizer grade of 18:46:0.

18+46=64
200-64=135 kg filler material

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